Typewriter attachment for manifolding



1946. R. J. COPELAND ET AL 2,392,522

TYPEWRITER ATTACHMENT FOR MANIFOLDING Filed Feb. 1, 1943 2 Sheets-Sheet1 Jan. 8, R, J COPELAND ET AL TYPEWRITER ATTACHMENT FOR MANIFOLDINGFiled Feb. 1, 1943 Shets-Sheet 2 lure/7101".

JVW

Patented Jan. 8,1946

TYPEWRITER ATTACHMENT FOR, MANI- FOLDING Bobert J. Copeland, Toronto,Ontario, and Ernest J. Bloore, Brampton, Bloore assignor to saidOntario, Canada; said Copeland Application February 1, 1943, Serial} No.474,388

4 Claims. (01. 197-126) The principal objects of this invention are toprovide a manifold attachment for typewriters which will greatlyfacilitate the work of the stenographic operator in duplicate billing,and to devise an apparatus which may be easily and 'quickly attached tothe typewriter carriage so as to operate in unison therewith and whichwill carry both the duplicating carbon and the continuous form sheet forvarious purposes.

A further object is to devise an apparatus which will be arranged inclose operating relation to the'typewriter and will not impose any extraload upon the rolling supports of the typewriter carriage.

A still further object is to provide a means for carrying the specialduplicating carbon so that it will feed uniforml and may be easily andquickly interchanged.

The principal feature of the invention consists in the novelconstruction and arrangement of a; vertical frame having horizontaltrackways supporting a carriage carrying a pair of rollers upon which ismounted the carbon strip which extends around the typewriter platen,said carriage also carrying the continuous-form duplicator c'opy sheet.

A further feature of importance consists in the novel arrangement of anadjustable friction clutch drive connection between the paired rollersupports for the duplicator carbon.

In the accompanying drawings Figure 1 is a perspective view of ourimproved duplicator attachment connected with a typewriter.

Figure 2 is an end elevational view of the device illustrated in Figure1.

Figure 3 is an enlarged part sectional front elevational view of theduplicator attachment.

Figure 4 is an enlarged part sectional end elevational view of theattachment shown in Figure 3.

Figure 5 is an' enlarged vertical sectional view of the inter-connectinggearing between the carbon roller supporting spindles.

In-the form of apparatus herein shown, a baseboard I is preferablyprovided on which the typewriter 2 is to be placed. Mounted on the boardI are a pair of inter-connected standards 3 in which are adjustablymounted the bars 4 which are preferably rectangular in cross section andare vertically slidable in the standards 3 and are secured in adjustedrelation by set screws 5.

The upwardly extending ends .of the bars 4 are bent into a Z shape andthe upright extremities 6 are rigidly secured to a frame 1 which issupported in a vertical position with parallel bar portions '8 and 9arranged at the top and bottom. These bars are formed with longitudinalV.-

shaped grooves 8' and 9' in the upper and lowerv surfaces respectiv'ely.

' A triangular-shaped frame I I0 is arranged immediately to the rear ofthe frame I and has mounted thereon adjacent to the top bar II a pair ofrollers I2 which are formed with a bevelled periphery I3 tofit in theV-shaped groove 8', and a single roller I4- similar to the rollers I2 iseccentrically mounted at the lower apex of the frame III and itsbevelled periphery engages the groove 9' in the lower horizontal bar 9of the frame 'I.

The frame 'I is thus mounted on a roller support and is held securely inits vertical position by the upper and lower rollers engaging the frameI.

A flat bar I5 is integrally connected to the top bar II of the frame Iand mounted upon one end thereof is an angle bracket I 6 which extendsvertically upward therefrom, said bracket being formed with lower andupper bosses I1 and I8 and an intermediate boss I9. Spindles 2'0 and 2|are journalled respectively in the bosses I1 and I8 and these extendparallelly spaced above the bar I5. The spindle 2I extends through theboss I8 and mounted on the extension end 22 of the spindle 2| is a spurgear 23 which is rigidly secured thereon.

A knurled knob 24 is mounted on -the outer extension end 22. The spindle20 extends through the boss I1 and the extension end 25 thereof hasloosely mounted thereon a spur gear 26 which is preferably formed with acircular recess 21 in the outer face.

A flanged sleeve 28 having a friction surface- 29 engaging the base ofthe recess 21 is slidably but non-rotatably mounted on the extension 25of the spindle 20, being held from rotation by a pin 30 extendingthrough a slot 3| in the spindle. Th outward end of the spindleextension 25 is threaded, and threaded on this extension is a. flangenut 32. A coil compression spring 33 extends over the sleeve 28 engagingthe flange thereof and the outer end of this spring is engaged by thenut 32. By adjusting the nut on the threaded spindle the pressure of thespring against the flanged sleeve may be varied.

A knurled knob 34 is fixedly secured on the I9 and on this bolt isrotatably mounted a spur ear 36, which is preferably of fibre and meshes'grap originally mounted on one of the sleeves 43, is

with the gears 23 and 26, so that upon the turning of the knob 24 or 94the -motion will be transmitted through the gear 88 from one spindle tothe other.

It will be noted however that the gear 26 is loosely mounted on thespindle and any motion imparted to this gear will-be applied to thespindle through the medium of the friction clutch formed by the flangedsleeve '28.

A casing 31 is arranged to enclosethe gearing described and is securedin position by the bolt 35. 1 1 7 Tapered hubs 38 and 39, each formedwith lateral flanges, are threaded on the spindles 20 and 2|respectively, and these engage in rotative contact with the ends of thebosses l1 and I8.

Similarly formed hubs 49 and 4| are threaded on the outer threaded endsof the spindles 25- and 2| and lock nuts 42 are threaded outside of eachof these hubs to secure them in adjusted positions. I

Tubular sleeves 43 are mounted between the opposing tapered pairs ofhubs and these sleeves form the cores upon which are mounted theopposite ends of a length of carbon paper 44 which is preferably of aspecial type, known as Hecto- This length of carbon paper, which iscarried outwardly from the sleeves over the paper guide 45 of thetypewriter 2 which is placed upon the baseboard l adjacent to thestandards 3, and, being carried around the platen 41 of the typewriter,its end is secured tothe upper tubu-' lar sleeve 43.

The carriage formed by the frame Ill, mounted on its roller supports asdescribed, is connected to the typewritercarriage 48 by an adjustabletrunbuckle rod 49, which is pivotally' connected at one end to a bracket50 mounted on the top bar l of the frame l9, and the other end of therod 49 is plvotally connected to a bracket 5| to which is pivotallysecured a clamp member. 52 which may be secured to any suitable portionof the typewriter carriage, and by -means of this adjustable rodconnection between the frame In and the typewriter carriage, movement ofthe carriage is imparted. to the roller-supported frame carrying thecarbon sheet, and adjustment may be made by means of this turn-bucklerod to bring the carbon sheet into proper alignment with the typewriterplaten.

Secured to the outward side of the frame I!) is a pair of flat verticalbars 53 which extend downwardly and are bent outwardly and' upwardly toform a basket-like receptacle connected by a U-shaped bar 54 at the topand in which the dual continuous-form sheet 55, upon which the invoicesor other records are to be made, is placed. This dual sheet extends fromthe basket container beneath the ,lower carbon sheet roll and isthreaded between the typewriter paper guide 45 and the under portionofthe carbon sheet loop and thus passes with said car- -bon sheet,around the platen of the typewriter.

The outward sheet of the dual form is printed upon directly by thetypewriter and a reverse impression of the type is made on the secondarysheet by the carbon sheet against which it lies. Thus an originalrecordsheet and a reproducing carbon are made on separate sheets at the sametime, the reproducingcarbon being utilized in making multiple copies ina suitable form of duplicating machine.

It will be understood that as the typewriter .is operated the carbonsheet is drawn from the I full roll carried by the frame l9 and it iswound up upon the adjacent roll and as the carbon winds up on thesecondary roll and winds from 5 the primary roll, there will be avariation in the diameter of the respective rolls. This varia- "tion isaccommodated by the slip connection provided in the friction clutchmounted on the spindle 20, and the friction may be adjusted to suit theconditions that may be found to exist -with the paper and carbon beingused by manipulating the tension nut 32 on the threaded extension 25 ofthe spindle 29.

Further, it will be understood that the operator may adjust either ofthe spindles and the roll of carbon mounted therein by means of theknurled nuts 24 and 34 mounted thereon.

It will be understood from this description that, as the carriage formedby the frame ID on its roller support is arranged vertically immediatelybehind the typewriter, there will be a minimum of length of the carbonsheet between the supporting roll and the typewriter carriage.Furtheffi-the support of the continuous-form sheet to be typed upon isarranged close to the wheel supports of the frame and the device willnot be out of balance and it will therefore operate with the minimum offriction, and as same is close-coupled directly to the typewritercarriage the movement of the carriage in the normal operation of thetypewriter will not be impeded, and the carriage may operate freely inraising and lowering in shifting from upper case to lower case keyswithout any extra load, as the entire weight of the carbon rolls and thesupporting mechanism is carried on the rigid guide-frame l, theturnbuckle rod 49 being free to swivel with the upand-down movement ofthe carriage:

I It'will be seen that the frame 1 may be adjusted in height by raisingand lowering the support rods 4 mounted in the standards 3.

The device is very compact and of simple and durable construction andcan be readily adapted I for use with any standard malie of typewriter.

It will be noted that the carbon roll carrying spindles are supportedentirely from one end and that it is merely necessary to remove the locknuts and hubs and 4| in order to remove and replace the carbon roll. v 5Further, it will be understood that after the carbon sheet has beenunrolled from one of the sleeves 43 it may be rolled back for furtheruse by means of the knurled knob on the spindle of the roll.

What we claim as our invention is: 1. A manifold attachment fortypewriters, comprising a vertical frame having parallel horizontaltrackways, a movable frame arranged parallel with the aforesaid frameand having rollers engaging said trackways, means connecting saidmovable frame to the carriage of the typewriter for movement therewith,a rigid bracket extending upwardly from the movable frame, a pair ofspindles parallelly mounted at one end in said bracket, rollers securedon said spindles for supporting a length of duplicating paper to belooped about the platen of the typewriter, a spur gear rigidly securedon the end of one of the spindles extending through the bracket, a spurgear mounted on said bracket and meshing with the aforesaid gear, a spurgear loosely mounted on the,other of said spindles and meshing with theintermediate spur'gear, a friction clutch mounted on the spindlecarrying the loosely mounted spur gear, and means for adjusting saidfriction clutch.

2. A manifold attachment for typewriters as claimed in claim 1 in whichthe friction clutch comprises a flanged sleeve slidably andnon-rotatably mounted on the spindle carrying the loosely mounted gearwheel, a friction surface carried by said flanged sleeve engaging therotatably mounted gear wheel, a coil spring engaging said flangedsleeve, a nut threaded on the spindle carrying the loosely mounted gearto adjust the compression of said coil spring, and-means for turningsaid spindles.

3. A device as claimed in claim 1 having cone flanges spaced apart andmounted on each of said spindles, sleeves mounted between said coneflanges adapted to carry the length of duplicatlng paper, and lock nutsthreaded on the outer ends of said spindles to engage the outermost coneflanges to hold them in locked position carrying the duplicator stripsupporting sleeves.

4. A manifold attachment for typewriters, comprising a vertical frameformed with an up- ,per horizontal bar and a lower bar paralleltherewith, a movable frame arranged parallel with the aforesaid framehaving rollers engaging said ,upper and lower bars and supporting andguiding the movable frame, a paper holder carried by said movable frame,means carried by said movable frame for supporting a length ofduplicating paper to be looped around the platen of a'typewriter, an armpivotally mounted on said movable frame to swing in a planesubstantially parallel to a plane defined by the upper and lower barsthereof of the movable frame, and pivotal means connected to the freeend of said pivotal arm adapted to be connected to the carriage of atypewriter.

ROBERT J. COPELAND. ERNEST J. BLOORE.

